The newly chosen Illinois Democratic candidate for the U.S. Senate, Tammy Duckworth, says she backs President Barack Obama's choice for the U.S. Supreme Court. She's calling on her opponent to do the same.
The U.S. Senate's Republican leader says he'll block Supreme Court nominee Merrick Garland.
But Rep. Duckworth says Garland has "impeccable credentials."
Duckworth is campaigning to take Republican Mark Kirk's Senate seat from him.